100% wool fabric

The quality of 100% wool is primarily determined by fiber fineness (micron count) and yarn count (Super S numbers). For high-end suiting, look for Super 100s to Super 150s; higher numbers indicate finer, softer fibers but may be less durable for daily wear. Additionally, verify the fabric weight (GSM) to ensure it matches the intended season—240-280 GSM is ideal for four-season suits, while 300+ GSM is better for heavy overcoats.

Modern wool processing includes technologies like mercerization for a silk-like luster and shrink-resistance treatments (such as Basolan or Hercosett) to improve dimensional stability. For outdoor or functional apparel, inquire about water-repellent (DWR) finishes and natural stretch capabilities achieved through high-twist yarn construction rather than synthetic additives.

To ensure authenticity and ethical sourcing, prioritize suppliers with Woolmark Certification, which guarantees 100% pure new wool content. For sustainability-focused markets, look for the Responsible Wool Standard (RWS) to ensure animal welfare and land management, and OEKO-TEX Standard 100 to confirm the absence of harmful substances in dyes and finishing agents.

Request a Burn Test report or perform one on samples: genuine wool burns slowly, smells like burnt hair, and leaves a brittle black ash that crushes easily. Synthetic blends will typically melt, smell like plastic, and form a hard bead. Always demand a Third-Party Lab Test (SGS or Intertek) for fiber composition analysis before releasing the final payment.

The most significant risk is fiber substitution, where a supplier may blend wool with polyester or viscose to lower costs. Another risk is color shading (batch-to-batch variation). To mitigate this, use Made-in-China.com's inspection services to verify that the bulk production matches the approved 'Golden Sample' in both composition and color accuracy.

Wool is a commodity-linked product, so prices fluctuate based on raw wool auctions (e.g., Australian Wool Exchange). Negotiate based on volume-tiered pricing, but be aware that 100% wool usually has higher MOQs (often 500-1000 meters) due to dyeing vat requirements. For smaller orders, ask for 'Ready Goods' or stock service colors to avoid high surcharges.

Wool is highly susceptible to moisture and moth damage. Ensure the supplier uses double-layer packaging: an inner plastic polybag to prevent humidity ingress and an outer woven bag for structural strength. For sea freight, specify the use of desiccants (silica gel) inside the containers to prevent 'container rain' which can cause mildew on natural fibers.

Utilize Trade Assurance or secure payment terms offered through reputable platforms like Made-in-China.com. Always define a clear Quality Specification Sheet in the contract, including tolerances for shrinkage (usually +/- 3%) and colorfastness grades (minimum Grade 4 for dry rubbing). Conduct a Pre-Shipment Inspection (PSI) to check for weaving defects like knots, holes, or oil stains.